Transcript
Your Serial and Data Communications Expert
TLC485 RS-232 to RS-485 Converter（DB9）
Introduction: The TLC485 is a bi-directional port-powered RS232 to RS485 converter. It can convert any standard full duplex RS232C port to any two-wire balanced half duplex RS485 port. In simple terms, it will convert any RS232 signal to a RS485 signal and vice versa. The unit is powered from the RS232 data lines. It also supports data direction auto-turnaround. Therefore, no external power or flow control
is
required.
The
data
direction
auto-turnaround
automatically enables the RS485 driver when data is present on the RS232 side making the device plug-and-play, requiring no software drivers.
Packing List: TLC485 is shipped with following items. 1. TLC485×1 2. Separate terminal block(DB9F to 3 bit) ×1 3. User manual ×1
Features: 1. Port-powered from RS232 port (TXD, RTS, DTR): no external power is necessary 2. Convert RS-232(TXD, RXD signal) to RS-485 signal 3. Plug-and-Play (hot-pluggable, Data format Auto-sensing & Self-adjusting) 4. Data direction auto-turnaround, no flow control is required 5. Point to multi point, support 128 nodes loopback
Pinout Configuration: RS-485 port adopt DB9M (DB9F to 3 bit terminal block), RS-232 port adopt DB9F (Female), no power supply Input.
Shenzhen 3onedata Technology Co.,Ltd
Your Serial and Data Communications Expert
DB9F (Female/hole)
RS-232 (DB9F)
RS-485 (DB9M)
3 bit terminal block
DB9M (Male/needle) 2
TXD
3
RXD
5
GND
1
485-
2
485+
5
GND
485-
Data-
485+
Data+
GND
GND
Specifications: Standards: EIA RS-232C, RS-422 standard Working mode: Asynchronism, point to point, 4 wire full-duplex Transfer rate: 300~115200bps, auto test serial signal rate detect signal speed automatically, zero delay time Flow control: Data direction auto-turnaround, no flow control is required Max number of drops: 128 nodes Transfer distance: RS-485 side: 1.2Km RS-232 side: no less than 5m Port protect: 1500W surge protection, 15KV ESD protection Connector: RS-232 side DB9 female RS-485 side DB9M ( DB9F to 3 bit terminal block) Power Power input: No power supply need, powered from RS-232 port TXD, RTS, DTR Consumption: Static less than 10mA, dynamic less than 40mA
Shenzhen 3onedata Technology Co.,Ltd
Your Serial and Data Communications Expert
Environment Operating temperature: -10°C to 60°C Storage temperature: -40°C to 85°C Humidity: 5% to 95% (no condensation) Appearance Dimensions: 90.0mm×33.0mm×16.5mm(DB9) Material: Plastic (shell) Weight: 40g Warranty: 5 years
Troubleshooting instructions: Perform a loop back test on two TLC485 converters. Attach the two TLC485s to two serial ports on a PC and using two instances of a HyperTerminal program send a character from one and see if it echoes to the other. This will test both transmit and receive functions.
Applications:
Figure 1: Extending the RS232 data distance
Figure 2: Master/Slave multi-drop configuration
Certifications:
Shenzhen 3onedata Technology Co.,Ltd Tel: +86-755-26702688 Fax: +86-755-26703485 www.3onedata.com Shenzhen 3onedata Technology Co.,Ltd
